Abstract: To help the commander determine situation accurately in electronic countermeasure, this paper researches the construction and optimization implementation technology of 3D radar detection range. Based on Open Scene Graph (OSG) 3D graphics engine, and combining radar detection 2D area with vertical detecting distance calculating method, this paper achieves the general method for calculating 3D radar detection range. In the light of the large volume of radar data and realtime data updating, it is optimized in two stages: reducing the algorithm complexity and optimizing calculation method; using OSG multithreading technology to conduct parallel processing for the calculating drawing process. Through the test and analysis, the efficiency of multithread method is proved.
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Key words: electronic countermeasure, 3D graphics engine, 3D radar detection range, radar detection 2D area, vertical detecting distance calculating method, multithread